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IceJOKER [234]
3 years ago
8

PLEASE HELP!!! 15 PTS!!

Mathematics
1 answer:
kherson [118]3 years ago
6 0

Answer:

\large\boxed{C.\ (2,\ -45^o)}

Step-by-step explanation:

Regular coordinates (x, y)

Polar coordinates (r, φ)

r=\sqrt{x^2+y^2}\\\\\psi=\arctan\frac{y}{x}

We have the point

(\sqrt2,\ -\sqrt2)

Substitute:

r=\sqrt{(\sqrt2)^2+(-\sqrt2)^2}=\sqrt{2+2}=\sqrt4=2\\\\\psi=\arctan\left(\frac{-\sqrt2}{\sqrt2}\right)=\arctan(-1)=-45^o

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Pls help!!!!!!!!!!!1
Sloan [31]

Answer:lol it's -3

Step-by-step explanation: it's 3 because you had dirt 45.50 in your account and then you have to get books and those books will cost $3 more which means that you don't have that money since it indicates that in the problem which means that it would be -3 because you don't have the money so that's why I think it's negative 3.  

6 0
3 years ago
2x+5y=-7 <br> 7x+y=-8 <br> Substitution <br> Algebra 1
melomori [17]

{x,y} = {-1,-1}

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3 years ago
Yaro buys a baseball cap for $9.50. He also buys a new baseball. Yaro speads $13.50 altogether.
VMariaS [17]

Answer:

13.5 = 9.5 + x

x=4

Step-by-step explanation:

In this problem, the price of the baseball cap, which is $9.50, and a baseball, whose price is unknown (and therefore must be the variable), total $13.50. So, to set up the equation add the two prices and set them equal to the total, 9.5+x=13.5.

Then, using the subtraction property of equality subtract 9.5 from both sides. This means x=4, so the baseball cost 4 dollars.

4 0
3 years ago
In order to lease the car, Merle had to put $1,400 down and pay $346 per month. Which function rule represents this scenario?
Ostrovityanka [42]

Answer:

the answer is C.1054x + 1400

8 0
3 years ago
Read 2 more answers
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aleksklad [387]

analyze problem

complex interest

2000+2000*0.005=2010

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